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February 24, 2021 New research suggests that the famous black hole Cygnus X-1 – first black hole ever detected and one of the closest to Earth – is farther away and much more massive than previously believed. A new study suggests that one of the closest black holes to Earth, and the first ever detected, is both farther away and more massive than we thought. The study – published February 18, 2021 in the peer-reviewed journal Science – says that Cygnus X-1 is about 7,200 light-years from Earth, 20% farther away than astronomers had previously believed. Before the study’s new measurements, the black hole was believed to be about 6,100 light-years away and 15 times the mass of the sun. With an increase in distance, Cygnus X-1 is now believed to be 50% larger than previous estimates. That would make this black hole about 21 times the mass of our sun.

United statesIlya mandelInternational centre for radio astronomy researchCentre of excellenceMonash universityInternational centreRadio astronomyVery long baselineVery long baseline arrayGravitational wave discoveryDigitized sky surveyMilky wayDigitized skyCygnusx 1 black hole more massive fartherஒன்றுபட்டது மாநிலங்களில்இலைய மண்டேல்